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Old 21st February 2006, 07:47 AM
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Please Help! Chart - How high the Rockwell Hardness increase after material has been edgerolled?

Does anyone know of a chart that tells how high the rockwell iincrease after the material has been edgerolled? The process is called edgerolling where a rounder edge is formed on steels.
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Old 22nd February 2006, 08:18 AM
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dbulak,

I tried a google search and didn't have any luck. Have you tried contacting Rockwell?

Anyone else have any sugestions?
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Old 22nd February 2006, 09:07 AM
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Quote:
Originally Posted by dbulak

Does anyone know of a chart that tells how high the rockwell iincrease after the material has been edgerolled? The process is called edgerolling where a rounder edge is formed on steels.
If there is such a thing, your steel supplier should be able to help.
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Old 1st March 2006, 11:26 PM
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There are several factors which will come into play.

1. Type of steel. 1008, 1010.......
2. Rate of form/cold work.
3. Stress & strain.
4. Heat generation

The long and short of it is that there is no reliable way to measure this at the plant level. Hopefully your relationship with your steel supplier is such that their lab or the lab at their integrated mill source has the facilities to perform such testing. Best bet would be to contact your local met lab and FedEx a few samples.
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